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Replacing A 1962 Mercury Master Cylinder

John Gunnell demonstrates through these 12 photos, how to replace the 1962 Mercury master cyclinder that he located at B.S. Wisniewski (Wizzy’s) auto parts store.

1 – Shop manual and supplement are big help. After six months, master cyclinder was found at Wizzy’s in Milwaukee, Wisconsin. It came complete with an invoice, return policy and company history.

2 – Although the first two steps in shop manual were confusing, it was easy to start by disconnecting brake line from brass fitting on master cylinder using 3/8-inch wrench to back off the flare nut.

3 – Move brake line away from front of brass fitting on front of old master cylinder. Disconnect tow electrical wires attached to the stop-light switch on the left-hand side of the brass fitting.

4 – Remove old master cylinder. Leave brass fitting and stop-light switch attached. We tried to remove it on the car and broke a piece off of the brass fitting. save the nuts and washer for the master cylinder.